Question

if A={5,6},B={4,5,6,},C={5,6,7},
show that A×A=(B×B)intersection (C×C)​

Answer 1

Step-by-step explanation:

(i)A×(B∩C)

∩ Intersection:common between two sets

B∩C={3,4}∩{4,5,6}={4}

A×(B∩C)=

{1,2,3}×{4}

={(1,4),(2,4),(3,4)}